scholarly journals Tissue Level Changes after Maxillary Sinus Floor Elevation with Three Types of Calcium Phosphate Ceramics: A Radiological Study with a 5-Year Follow-Up

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1471
Author(s):  
Wilhelmus F. Bouwman ◽  
Nathalie Bravenboer ◽  
Christiaan M. ten Bruggenkate ◽  
Francis A. Eijsackers ◽  
Najada Stringa ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Dental Implant ◽  
Sinus Floor Elevation ◽  
Radiological Study ◽  
Calcium Phosphate Ceramics ◽  
Implant Placement ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation ◽  
Over Time

This study evaluates the radiological changes in tissue height after maxillary sinus floor elevation (MSFE) using three types of calcium phosphate ceramics over a period of up to 5 years after dental implant placement. In 163 patients, MSFE was performed. Three groups of patients were distinguished and treated based on the type of calcium phosphate ceramic used and radiologically evaluated: 40 patients with β-tricalcium phosphate (β-TCP), 76 patients with biphasic calcium phosphate (BCP) 20% hydroxyapatite (HA)-80% β-TCP, and 47 patients with BCP 60% HA-40% β-TCP. Radiological measurements were performed on panoramic radiographs at several time points up to 5 years after dental implant placement. After MSFE, a slow decrease in tissue height measured over time was seen in all three study groups. Resorption of the grafted bone substitutes was more prominent in β-TCP than in BCP ceramics with an HA component (60/40 and 20/80). Loss of tissue height after 5 years was lowest in BCP 60/40 and highest in β-TCP. This radiological study shows a predictable and comparable behavior of the slow decrease in tissue height over time for all three types of calcium phosphate ceramics used in MSFE. The fraction of HA in calcium phosphate ceramics and dental implant loading seems to be beneficial for tissue height maintenance after MSFE.

scholarly journals Morphometric and Histomorphometric Evaluations of High-Purity Macro/Microporous β-TCP in Maxillary Sinus Floor Elevation

2021 ◽  
Author(s):  
Atsushi Fujita ◽  
Chonji Fukumoto ◽  
Tomonori Hasegawa ◽  
Yuta Sawatani ◽  
Hitoshi Kawamata
Keyword(s):  
Maxillary Sinus ◽  
Dental Implant ◽  
Alveolar Bone ◽  
Bone Biopsy ◽  
Sinus Floor Elevation ◽  
Implant Placement ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Morphometric Evaluation ◽  
Maxillary Sinus Floor Elevation

Abstract Background: The present study examined the effectiveness of high-purity macro/microporous beta-tricalcium phosphate (HPMM β-TCP) as a bone grafting material for maxillary sinus floor elevation by morphometric and histopathological, histomorphometric evaluations.Methods: Ten maxillary sinus floor elevation procedures using 100% HPMM β-TCP were performed on 10 patients. Morphometric evaluation was carried out by CT imaging immediately after augmentation and prior to dental implant placement after 7 months.Histopathological and histomorphometric evaluation were carried out by bone biopsy retrieval at the time of dental implant placement 7 months after sinus floor elevation. Results: All 10 sinus floor elevations were successful. Morphometric evaluation by CT images showed that the vertical height and the volume gained by sinus floor elevation decreased 7 months after surgery. Histopathological evaluation by bone biopsy retrieval specimens showed no signs of inflammation at the newly formed bone area and the native alveolar bone area. New bone formation was observed at the cranial side from the native alveolar bone. The newly formed bone had a trabecular structure and was in intimate contact with the HPMM β-TCP material. Histomorphometric evaluation by bone biopsy retrieval specimens revealed an average new bone volume of 33.97%±2.79% and an average residual HPMM β-TCP volume of 15.81%±4.52%.Conclusions: In this study, HPMM β-TCP showed the osteoconductive properties for vertical augmentation of the atrophied maxilla by means of a maxillary sinus floor elevation procedure allowing subsequent dental implant placement after a 7-month healing period.

scholarly journals Morphometric and histomorphometric evaluations of high-purity macro/microporous beta-tricalcium phosphate in maxillary sinus floor elevation: preliminary results on a retrospective, multi-center, observational study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Atsushi Fujita ◽  
Chonji Fukumoto ◽  
Tomonori Hasegawa ◽  
Yuta Sawatani ◽  
Hitoshi Kawamata
Keyword(s):  
Maxillary Sinus ◽  
Dental Implant ◽  
Alveolar Bone ◽  
Bone Biopsy ◽  
Sinus Floor Elevation ◽  
Implant Placement ◽  
Beta Tricalcium Phosphate ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation

Abstract Background The present study examined the effectiveness of high-purity macro/microporous beta-tricalcium phosphate (HPMM β-TCP) as a bone grafting material for maxillary sinus floor elevation by morphometric, histopathological, and histomorphometric evaluations. Methods Ten unilateral maxillary sinus floor elevation procedures using 100% HPMM β-TCP were performed in 10 patients. Morphometric evaluation was carried out by computed tomography (CT) imaging immediately after augmentation and prior to dental implant placement 7 months later. Histopathological and histomorphometric evaluations were carried out by bone biopsy retrieval at the time of dental implant placement 7 months after sinus floor elevation. Results All 10 sinus floor elevations were successful. Morphometric evaluation by CT showed that the vertical height and volume gained by sinus floor elevation decreased 7 months after surgery. Histopathological evaluation of bone biopsy retrieval specimens showed no signs of inflammation at the newly formed bone area and the native alveolar bone area. New bone formation was observed at the cranial side from the native alveolar bone. The newly formed bone had a trabecular structure and was in intimate contact with the HPMM β-TCP material. Histomorphometric evaluation of bone biopsy retrieval specimens showed an average new bone volume of 33.97% ± 2.79% and an average residual HPMM β-TCP volume of 15.81% ± 4.52%. Conclusions In this study, HPMM β-TCP showed osteoconductive properties for vertical augmentation of the atrophied maxilla by means of a maxillary sinus floor elevation procedure allowing subsequent dental implant placement after a 7-month healing period.

scholarly journals Maxillary Sinus Floor Elevation

2018 ◽  
Vol 2 (2) ◽  
pp. 495-498
Author(s):  
Jorge Gatica ◽  
Claudio Garayar
Keyword(s):  
Maxillary Sinus ◽  
Oral Surgery ◽  
Sinus Lift ◽  
Sinus Floor Elevation ◽  
Rehabilitative Treatment ◽  
Implant Placement ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Bone Height ◽  
Maxillary Sinus Floor Elevation

The sinus lift is a procedure that is used frequently in oral surgery, different techniques exist to perform this procedure approaches, which allow the surgeon to give a sufficient bone height for planning a rehabilitative treatment with implant at the required site. In this case the unilateral lifting of the maxillary sinus floor by buccal bone window, with subsequent implant placement and lyophilized human bone in a single surgical procedure.

scholarly journals Minimally Invasive Lateral Approach through Circular Window with a Diameter of 5 to 6 mm for Maxillary Sinus Floor Elevation with Simultaneous Implant Placement: Retrospective Study

2021 ◽  
Vol 11 (17) ◽  
pp. 8244
Author(s):  
Sang-Woon Lee ◽  
Young-Wook Park
Keyword(s):  
Minimally Invasive ◽  
Maxillary Sinus ◽  
Treated Patient ◽  
Lateral Approach ◽  
Sinus Floor Elevation ◽  
Circular Window ◽  
Implant Placement ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Elevation

The aims of this study were to propose a minimally invasive lateral approach technique for maxillary sinus floor elevation (MSFE) with simultaneous implant placement and to evaluate the surgical outcome and complications of this technique. This study reviewed 49 surgeries of MSFE with simultaneous implant placement (n = 83) using a minimally invasive lateral approach. A circular shape window with a diameter of 5 to 6 mm and an area of 20–30 mm2 was made on the lateral wall of the maxillary sinus. After elevation of the Schneiderian membrane, the xenograft was used for bone grafting. The MSFE was possible with a minimum-sized window in 47 of 49 cases. For the remaining 2 cases, MSFE with a minimum-sized window was failed. In one case, it was expanded to be more than 30 mm2 to repair the membrane perforation. In another case, MSFE was performed by forming two minimum-sized windows. Post-operative bleeding after MSFE occurred in one anticoagulant-treated patient. There was no failed implant during the follow-up period (mean 22 months). A minimally invasive lateral approach through a small circular window with a diameter of 5 to 6 mm is a feasible and safe technique for MSFE with simultaneous implant placement.

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